Sash-lock.



No. 758,679. PATENTBD MAY s, 1904.

A. J. MQGBHEE. A

SASH LOCK.

APPLICATION FILED JULY 11, 1901.

I0 IODEL.

M G wmvgiglgi ik UNITED STATES ABNER JUDSON MCGEHEE,

PATENT OEEICE.

OF JACKSON, TENNESSEE.

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SPECIFICATION forming part of Letters Patent No. 7 58,679, dated May 3, 1904.

' Application ma .my 11, 1901.

To all whom it may concern:

Be it known that I, ABNER JUDsoN Mc- GEHEE, a citizen of the United States, residing at Jackson, in the county of Madison and State of Tennessee, have invented certain new and useful Improvements in Sash-Locks. of which the following is a specification, reference being had therein to the accompanying tends the full length of the sleeve.

drawings.

The object of my invention is to -provide a new and effective lock which will secure both window-sashes in any desired position, preventing them from being raised or lowered from the outside and also holding them tightly in the frame, so that they'will not rattle, and to render the lock adjustable to any thickness of sash and to any thickness of windowframe from the outside blind-stop to the inside facing.

The invention consists of the novel details of construction and arrangement of the parts, as hereinafter fully described and claimed.

Referring to the accompanying drawings, which form a part of this specification, similar characters of reference indicating corresponding parts in all the views, Figure l is a horizontal section through the window-frame at the meeting-rails of the sash, showing the lock as applied to the window-frame of the ordinary size. Fig. 2 is a like view of a window-frame of-extraordinary thickness, showing the manner of stretching out the lock'by the use of the extension-sleeve. Fig. 3 is a detail view of the lock in its separate parts.

Referring to the drawings in detail, A represents the lower sash; B, the upper sash; C O', the inner and outer facings of the frame; D D', the inner and outer stop-beads; E, the parting-strip, and F the window-jamb. The lock is located in a recess in the jamb of the window in such a manner that the angled end H of sleeve G rests against the outside ofthe top sash and the clamp M against the inner side of the bottom sash, as shown in Figs. 1 and 2.

The sleeve G has one end extended at right angle to form the clamp H, and the other end is threaded right-handed internally some distance alongv the circular aperture I, which ex- The rod Serial No. 67,879. (No model.)

K has right-handed threads on one portion to engage the sleeve G, left-hand threads on its other portion to carry clamp M, and one end is made square or angular to engage the key S. By screwing rod K in or out of sleeve G the length of the lock is readily adjusted to the distance from the stop -D to the inside facing O in Fig. 1, and the clamp M is adjusted to the sash by screwing it back and forth on the rod. This form of the lock meets the requirements of all medium size window-frames in frame houses Where fourinch studding is used and in all cases when 'the jamb is from four and one-half to six inches wide; but when six-inch studding is used or the window-jamb is very wide in brick houses, as shown in Fig. 2, I use the extension-sleeve P to supplement the normal length of the lock and enable it to be operated by the key S. This extension-sleeve has a square or angular aperture its entire length, so that one end will engage the angular end of rod K and the other end will receive the angular stem of key S. It also has the grooves R R RH around its exterior to enable it to be readily broken at these points should a shorter piece be desired to fill out the required length of lock.

The clamps H and M may have slight corrug'ations on their face, as shown in M, Fig. 3, to assist in holding the sash against slipping when clamps are applied with moderate force.

The operation of the lock will be readily understood both with and without the extension-sleeve P. The turning of the key S to the right causes the clamps to be drawn together against the sashes, holding them securely. The reverse turning causes them to recede quickly, leaving the sash free to move.

I am aware that a patent has been granted on a device of this class showing a rod with right-hand threads on one end and left-hand on the other, and I do not make any claim to this particular pie-ce of the combination herein shown; but I claim the combinations set out below with the rod threaded nearly its entire length and the sleeves G and P in particular, since by their use the lock is rendered adjustable to the different measurements of sash and lOO v frame, and is thus made to become a practical device.

The key S may be made with crank-handle or thumb-screw head, as preferred, and its stem adapted to engage the end of the rod, as shown in Fig. 1, or to engage the sleeve P, as in Fig. 2.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. A sash-lock comprising a sleeve angled at one end to form a clamp and having the other end threaded internally, a rod having right-hand threads on one portion left-hand threads on the other portion and a -clamp mounted thereon, another sleeve adapted to engage the angular end of said rod and to be rotated by a key, substantially as described.

2. A sash-lock comprising a sleeve having an internal circular aperture its entire length one end angled to form a clamp and the other end threaded internally a rod having one portion threaded to engage said sleeve and the other portion reversely threaded to engage a clamp, a clamp having corrugations on its face, another sleeve having an angular internal aperture its entire length and grooves around its exterior and a key adapted to rotate said sleeve substantially as specified.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in the presence of two Witnesses.

' ABNER J UDSON MCGEHEE.

Witnesses:

F. W. ADAMsoN, HU. C. ANDERSON. 

